Home / 13,402.29-20,106.78-4,042.08

Finding the Fourth Proportional to 13,402.29, 20,106.78 and 4,042.08

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Solution

The fourth proportional to 13,402.29, 20,106.78 and 4,042.08 is: 6,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.29 : 20,106.78 = 4,042.08 : x
  2. Step 2: Convert to fraction form
    13,402.29/20,106.78 = 4,042.08/x
  3. Step 3: Cross multiply
    13,402.29x = 20,106.78 × 4,042.08
  4. Step 4: Simplify right side
    13,402.29x = 81,273,213.30
  5. Step 5: Solve for x
    x = 81,273,213.30/13,402.29
  6. Step 6: Final answer
    x = 6,064.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.